Floor-forming form



2 SHEETS-SHEET 1 H. E. RICHMOND;

FLOOR FORMING FORM.

APPLICATION men MAY 23. 1 21.

Patented June 27, 1922.

R. E. RICHMOND.

noon FORMING FORM. APPLICATION men MAY 23'. I921.

1,420,863. Patented June 27,1922.

2 8HEETSSHEET 2.

4 v 1 4 4 a d F! 5 ROBERT E. RIGHMLOND, OF IE'IINITEAPQLIS,

ELLIOTT COMPANY, OF MINNEAPOLIS, SOTA.

arer orricE.

MINNESOTA, ass'reivoia T0 ir. AND w. A. MINNESOTA, A CORPORATION or MINNE- FLOOR-EORMING FORM.

To all whom it may concern: I

Be it known that I, ROBERT E. RICHMOND, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesotmhave invented certain new and useful Improvements in Floor- Forming-Forms; and Ido hereby declare the following to be a full, clear, and exact description of the invention, suchas will enable others skilled in the art to'which it appertains to make and use. the same. I

My invention relates to floor-formingforms' and process of erecting the same, and which forms are intended for general' use, but are especially adapted for use in reinforced concrete and tile construction, and has for its object to improve the same in the several particulars hereinafter noted.

In the accompanying drawings, which illustrate the invention, like characters indi oate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a view partly in elevation and partly in vertical section, with some parts broken away;

Fig. 2 is a fragmentary plan view of the parts shown in Fig. 1, with the concrete omitted;

Fig. 3 is a view partiyin elevation and partly in section, taken on the irregular line 3 of'Fig. 1, on an enlarged scale; I

Fig. 4 is a transverse section taken on the line %4 of Fig.1, on an enlarged-scale;

Fig. 5 is a perspective view of one of the flanged plates; and

Fig. 6 is a perspective view of one of the plain plates.

The structure illustrated in the drawings includes a wall 7 and a floor 8 carried by said wall and a beam 9 and spandre'l beam 10. Thewall 7 may be of brick or other suitable material and the floor 8 and beams'9 and 10 are of monolithic reinforced concrete. H01 low tile 11, arranged in laterally spaced rows which extend transversely in respect to the wall and beams, are imbedded in the under face of the floor 8 at the time the con The ends of the several crete is poured. rows of tile 11 are terminated sh'ort of'the beams 9 and 10 to leave flanges 12 on either side of the beam 9 and a flange 13 on the inner side of the spandrel' beam 10. Said rows of tile 11 are also terminated short of the wall 7 to leave a flange 14 which extends into the wall 7, as shown in Fig. 1. The

Specification of Letters Eaten't. Pat t June 27 1 2 1921. seriarno. 471,598.

widthof these flanges 12, 13 and 14 may be varied, atwill, by the termination of the rows of tile 11. The purpose of the tile 11 is, of course, to lighten the floor structure between the wall and the several beams.

The process of erecting the above de-' scribed reinforced concrete and tile structure consists in supporting, on upright posts 15 having T-heads 16, trough-like forms 17 and 18, in which the beam 9 and spandrel beam 10, respectively, are 'formed, and it will be noted that the outside of the form 18 extends to the upper surface of the floor 8,. Edgewise spacedpla'nks 19 and 20 are then placedbetween the wall 7' and beam 9, and between said beam 9 and the spandrel beam 10, respectively. The ends of the planks 19, at the wall 7 abut thereagainst and are supported on stringers 21 carried by posts 22, and the other ends of the p1anks19 and 20 are supported on the upper edges of the sides of the beam forms 17 and 18 with their ends terminating-flush with the inner faces thereof, leaving the interior of said beams entirely open. The planks 19 and 20 are further supported at intermediate points on stringers 23 carried by posts 24, only one of each of which is shown.

Preferably, and as shown, the longitudinal edges of the planks 19 and 20 are rabbeted at 25 to receive and support the tile 11 so as to cover the openings between said planks, except at the flanges 12, 13 and 14, or, in other words, at the endsof the rows of said tile. The forms thus far described are nowcommonly used in reinforced concrete and tile construction, with the exception of the rabbeting edges 25 of the planks 19 and 20, which is highly important, as said rabbeted edges align and laterally space the tile in the several rows and prevent the same from being displaced, either by the workmen moving, therebetween or by the concrete at the time the same is poured. Without these rabbeted edges 25,.the tile 11, if displaced, is liable to drop between the planks 19 and 20,. thus endangering the lives of workmen below.

Heretofore, it has been necessary to fill the open spaces between the planks 19 and 20, at the ends of the rows of ti e 11, with short pieces of plan-k, which required a large amount of time to fit and; cut and waste in materials. To eliminate this waste of time and material, I provide metal plates 26 and 27, preferably of the same width as the tile 11, thereby permitting the same to be supported on the rabbeted edges 25 of the planks 19 and 20 and held in position thereby.

These plates 26 and 27 should have suflicientstrength to prevent the same from bending in case workmen step thereon. The length of the plates 26 and 27 is such that the same will preferably be overlapped by the tile at the ends of several rows, to thus compensate for varying widths in the flanges 12, 13 and 14 and to also close the joints between the ends of the rows of tile and said plates. However, the thickness of the plates 26 and 27 is such that the tile resting thereon is raised very little.

The plates 26 are especially designed for use at the beams 9 and 10 and are provided with downturned flanges 28 which overlap the respective ends of the planks 19 and to close the openings between said planks at the beams 9 and 10, as best shown in Figs. 1 and 3. In case single plates 26 and 27 do not close the openings at the ends of the rows of tile 11, two or more of said plates, in overlapped arrangement, may be used as shown in Fig. 2. After the forms a re in place and the tile 11 and reinforcing rods 29 properly positioned, the concrete is poured to form the floor 8, beams 9 and 10 and flanges 12, 13 and 14. After the con crete has set, the forms are removed.

The tile 11, which closes the openings between the planks 19 and 20, affords a deflnite portion of the floor-forming form, and when the form structure is removed said tile thereafter constitutes a definite part of the permanent floor structure.

Briefly stated, the improved process consists, first in erecting the posts 15 and placing thereon the beam forms 9 and 10 and in thereafter erecting posts and stringers 21, 22, 23 and 24 and placing the planks 19 and 20 thereon and on the top edges of the sides of said beam forms, next in closely positioning the tile 11 in rows on the rabbeted edges of the planks 19 and 20, and which act properly spaces said planks and aligns the tile 11, and thereafter in placing the metal plates 26 and 27 on the rabbeted edgesof the planks 19 and 20 to close the openings between said planks at the ends of the rows of tiles, and, finally, in closing the tile at the ends of the rows with mortar and thereafter pouring concrete, after the reinforcing rods have been placed in position, to form the floor 8, beams 9 and 10 and flanges 12, 13 and 14.

IVhat I claim is:

1. In a form structure comprising edgewise spaced planks and means for supporting the same, tile supported on the longitudinal edges of the planks and spanning the open ng therebetween, said tile terminating short of one end of the planks, and a metal plate supported on the planks and closing the opening therebetween not covered by the tile.

2. In a form structure comprising edge- Wise spaced planks and means for supporting the same, tile supported on the longitudinal edges of the planks and spanning the opening therebetween, said tile terminating short of one end of the planks, and overlapping metal plates supported on the planks and closing the opening therebetween not covered by the tile, one of said plates being overlapped by certain of the tile.

3. In a form structure comprising edgewise spaced planks, the adjacent longitudinal edges of which are rabbeted, means for supporting said planks, tile supported on the rabbeted edges of the planks and span ning the opening therebetween, said tile terminating short of one of the ends of the planks, and a metal plate supported on the rabbeted edges of the planks and spanning the opening therebetween not covered by the tile.

4. In a form structure comprising a beam frame, edgevvise spaced planks having one of their ends supported on the upper edge of one of the sides of the beam form, tile supported on the longitudinal edges of the planks and spanning the opening therebetween, said tile terminating short of the beam form, and a metal plate supported on the planks and closing the opening therebetween not covered by the tile and having a flange overlapping the respective ends of the planks.

5. In a form structure comprising a beam frame, edgewise spaced planks having one of their ends supported on the upper edge of one of the sides of the beam form, tile supported on the longitudinal edges of the planks and spanning the opening therebe-' tween, said tile terminating short of the beam form, and overlapping plates supported on the planks and closing the opening therebetween not covered by the tile, one of said plates having a flange overlapping the respective ends of the planks,

6, In a form structure comprising a beam form, edgewisespaced planks on either side of the beam form and having certain of their ends supported on the upper edges of the sides thereof, and tile supported on the longitudinal edges of the planks and spanning the openings therebetween not covered by the tile, said tile terminating short of the sides of the beam form. said plates having flanges overlapping the ends of the planks at the sides of the beam form.

7. A form structure comprising a wall and a beam form, edgewise spaced planks having one of their ends supported at the wall and their other ends supported on the u per edge of one of the sides of the beam form,

tile supported on the longitudinal edges of the planks and spanning the opening therebetween, said tile terminating short of the ends of the planks, and metal plates supported on the planks and closing the openings therebetween not covered by the tile, the metal plate at the beam form having a flange overlapping the respective ends of the planks.

8. A form structure comprising a wall, a spandrel beam form and a beam form be tween said wall and spandrel beam form, edgewise spaced planks, certain of which are supported at the wall and on the upper edge of one of'the sides of the beam form and the other of said planks being supported on the upper edge of one of the sides of the spandrel beam form and on the upper edge of the other side of the beam form, tile supported on the longitudinal edges of the planks and spanning the openings therebetween, said tile terminating short of the wall and beam form and also terminating short of the beam form and spandrel beam form, and metal plates supported on the planks and closing the openings therebetween not covered by the tile, certain of said metal plates having flanges overlapping the ends of the planks at the beam form and spandrel beam form.

In testimony whereof I aflix my signature.

' ROBERT E. RICHMOND. 

